In a small glass bowl, whisk together the honey, coconut aminos, apple cider vinegar, tomato paste, and freshly minced ginger until the glaze is smooth and well-combined.
Season the diced chicken breast pieces thoroughly with sea salt and black pepper to ensure every bite is flavorful.
Heat the toasted sesame oil in a large skillet or cast-iron wok over medium-high heat until it shimmers and is ready for searing.
Add the chicken to the hot skillet in a single layer, sautéing for about 5 to 6 minutes until the edges are golden brown and the meat is cooked through.
Remove the chicken from the pan and set aside, then toss in the red and green bell peppers along with the red onion, sautéing until they are crisp-tender and vibrant.
Stir in the minced garlic and fresh pineapple chunks, cooking for 2 more minutes until the pineapple starts to release its juices and caramelize slightly.
Return the cooked chicken to the skillet and pour the prepared sweet and sour sauce over the top, tossing everything together for 1 to 2 minutes until the glaze is thick and glossy.
Divide the mixture into bowls over a base of warm, steamed cauliflower rice for a clean and satisfying meal.